<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category    ZendX
 * @package     ZendX_JQuery
 * @subpackage  View
 * @copyright   Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license     http://framework.zend.com/license/new-bsd     New BSD License
 * @version     $Id: ColorPicker.php 11941 2008-10-13 19:41:38Z matthew $
 */

/**
 * @see ZendX_JQuery_View_Helper_UiWidget
 */
require_once "ZendX/JQuery/View/Helper/UiWidget.php";

/**
 * jQuery Color Picker View Helper
 *
 * @uses 	   Zend_Json, Zend_View_Helper_FormText
 * @package    ZendX_JQuery
 * @subpackage View
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class ZendX_JQuery_View_Helper_ColorPicker extends ZendX_JQuery_View_Helper_UiWidget
{
	/**
	 * Render a Color Picker in an FormText field.
	 *
	 * @link   http://docs.jquery.com/UI/ColorPicker
	 * @param  string $id
	 * @param  string $value
	 * @param  array  $params
	 * @param  array  $attribs
	 * @return string
	 */
    public function colorPicker($id, $value='', array $params=array(), array $attribs=array())
    {
	    $attribs = $this->_prepareAttributes($id, $value, $attribs);

	    if(strlen($value) >= 6) {
	        $params['color'] = $value;
	    }

	    if(count($params) > 0) {
	        /**
	         * @see Zend_Json
	         */
	        require_once "Zend/Json.php";
	        $params = Zend_Json::encode($params);
	    } else {
	        $params = "{}";
	    }

        $js = sprintf('%s("#%s").colorpicker(%s);',
            ZendX_JQuery_View_Helper_JQuery::getJQueryHandler(),
            $attribs['id'],
            $params
        );

        $this->jquery->addOnLoad($js);

	    return $this->view->formText($id, $value, $attribs);
    }
}